Tag: rule of tenths
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The Rule of Tenths
The rule of tenths is a ready reckoner which you can use as a rough guide to working out the current height of tide in your head. It’s very easy to do – it’s based… […]
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Rule of Tenths
Rule of twelths? It’s a bit tricky with metric charts… so use the Rule of Tenths: As your on deck ready reckoner for the state of tide Working out tidal heights using the traditional rule… […]
